Questions
A jet of water with a cross-sectional area a is striking against a wall at an angle to the horizontal and rebounds elastically. If the velocity of water jet is v and the density is , the normal force acting on the wall is
detailed solution
Correct option is A
The normal force F acting on the wall is given byF=rate of change of momentum =(avρ)vcosθ−(avρ)(−vcosθ) =2av2ρcosθTalk to our academic expert!
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